Colour

#18474C

#18474C
Cyan
Dark
Nearest: Dark slate grey

#18474C is a cyan with RGB values 24, 71, 76 and HSL 186°, 52%, 20%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#18474C#18474C

HEX#18474C

RGBrgb(24, 71, 76)

RGB (0–1)0.0941, 0.2784, 0.298

RGB percentages9.4%, 27.8%, 29.8%

HSLhsl(185.8, 52%, 19.6%)

HSV / HSBhsv(185.8, 68.4%, 29.8%)

CMYK68.4%, 6.6%, 0%, 70.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,591,116

CSS custom property--colour: #18474C;

Brightness & contrast

Relative luminance0.05222WCAG 2.x, 0 is black and 1 is white

Perceived brightness61.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.27:1

Contrast with white10.27:1WCAG normal text: AAA

Contrast with black2.04:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#E7B8B3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#41444Cno red cones; affects about 1% of men; ΔE 14.9 from the original

Deuteranopia#393E4Cno green cones; the most common form, about 1% of men; ΔE 15.6 from the original

Tritanopia#004A48no blue cones; rare, and affects men and women equally; ΔE 7.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.27:1WCAG large text: AAA

Contrast with black, large text2.04:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6 Dim grey · ΔE 23.3 Teal · ΔE 25.7 Slate grey · ΔE 28.2 Dark cyan · ΔE 30 Gray · ΔE 30.7

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.01, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#4C1D18

Analogous#184C37, #182D4C

Triadic#4C1847, #474C18

Split complementary#4C182D, #4C3718

Tetradic#37184C, #4C1D18, #2D4C18

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#62C3CE

Lighter +30%#3DB4C0

Lighter +20%#308F9A

Lighter +10%#246B73

Darker −10%#0C2325

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0B5159

Less saturated −25%#253D40

Channel breakdown

R24

G71

B76

Red24 (9.4%)

Green71 (27.8%)

Blue76 (29.8%)

Hue185.77°

Saturation (HSL)52%

Lightness19.61%

Dominant channelBlue

Hex per channelR 18 · G 47 · B 4C

Keep nerding

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#18474C

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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